Department of Cognitive Science, University of California at San Diego, San Diego, California, USA.
Nat Neurosci. 2012 Oct;15(10):1365-7. doi: 10.1038/nn.3213. Epub 2012 Sep 9.
We recorded parietal cortex neurons as rats traversed squared spiral tracks. Spatial firing patterns distinguished the behaviorally identical track segments composing loops, yet recurred with increasing or decreasing amplitude across the five loops composing the full track. These results indicate that parietal cortex neurons simultaneously respond to spatial relationships in multiple external reference frames, a phenomenon that may reflect a neural mechanism for relating parts to a whole.
我们记录了大鼠穿越方型螺旋轨迹时顶叶皮层神经元的活动。空间放电模式区分了构成环路的行为相同的轨迹段，但在构成完整轨迹的五个环中，随着幅度的增加或减小而重复出现。这些结果表明，顶叶皮层神经元可以同时对多个外部参照系中的空间关系做出反应，这种现象可能反映了将部分与整体联系起来的神经机制。
